The sensitivity to silicone contamination of a wide variety of adhesive bond systems is discussed. Generalizations regarding factors that make some bond systems more sensitive to contamination than others are inferred and discussed. The effect of silane https://ntrs.nasa.gov/search.jsp?R=20120016452 2018-05-11T02:27:53+00:00Z 2 adhesion promoting primer on the contamination sensitivity of two epoxy/steel bond systems is also discussed.

A quaternary bromide bath (LiBr-KBr-CsBr-AlBr 3 ) was used to electro-coat aluminum on steel substrates. The electrolyte was prepared by the addition of AlBr 3 into the eutectic LiBr-KBr-CsBr melt. A smooth, thick, adherent and shiny aluminum coating could be obtained with 80 wt.% AlBr 3 in the ternary melt. The SEM photographs of the coated surfaces suggest the formation of thick and dense coatings with good aluminum coverage. Both salt immersion and open circuit potential measurement suggested that the coatings did display a good corrosionresistance behavior. Annealing of the coated surfaces, prior to corrosion tests, suggested the robustness of the metallic aluminum coating in preventing the corrosion of the steel surfaces. Studies also indicated that the quaternary bromide plating bath can potentially provide a better aluminum coating on both ferrous and non-ferrous metals, including complex surfaces/geometries.Published by Elsevier B.V.

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During phenolic liner manufacture, resin-impregnated